Ameritron AL-811H tube selection
- This article examines the performance of the Ameritron AL-811H amplifier with the supplied 811A tubes and with 572B tubes, and details a procedure for replacement of existing tubes.
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- Ameritron AL-811H Amplifier inside 800 Watt PA modified with 4x 572b tubes
Yaesu FL2100Z operating tips
- The Yaesu FL2100Z is a HF linear amplifier rated for 1200W PEP input, and using two 572B triode tubes.
This article explores the recommended operating conditions, and alternatives.